应为str、字节或os.PathLike对象，而不是读取器

Question

为了练习，我在书中写了这段代码。然而，当我尝试运行它时，它没有起作用，我一直有同样的错误"；应为str、字节或os。PathLike对象，而不是读取器"；。如果你们能检查一下并告诉我出了什么问题，那将是一件非常友好的事情。我很感激。提前谢谢！

import csv
ruta = open(r"C:UsersronaldDocumentsPYTHON DATAimportes.csv")
ruta = csv.reader(ruta)
with open(ruta, encoding='latin1') as fichero_csv:
lector = csv.reader(fichero_csv)
next(lector, None)
importe_total = 0
for linea in lector:
importe_str = linea [2]
importe = float(importe_str)
importe_total = importe_total + importe
print(importe_total)

Answer 1

您不需要调用open()两次。只需在with语句中以文件名为参数调用一次即可。

with open(r"C:UsersronaldDocumentsPYTHON DATAimportes.csv", encoding='latin1') as fichero_csv:
lector = csv.reader(fichero_csv)
next(lector, None)
importe_total = 0
for linea in lector:
importe_str = linea [2]
importe = float(importe_str)
importe_total = importe_total + importe
print(importe_total)